US1573094A

US1573094A - Polarized electromagnet

Info

Publication number: US1573094A
Application number: US17082A
Authority: US
Inventors: Henry G Saal
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-03-20
Filing date: 1925-03-20
Publication date: 1926-02-16
Anticipated expiration: 1943-02-16

Description

Hi-GSAAL I POLARIZED ELECTROMAGNET Filed March 20,, 1925 @mii -Emy 8 symmetrically relcteii pairs of i.

Pntentcci Felt. 13, $1926.,

UNHED STAKES PATENT-@FFICE.

with OE GHICAfii), ILEQEINQIS.

implication mm to, 321%.? Kc. 321 382.

To ail whom it may concem:

Be it known that I, Qfizam citizen of the United States, icsifiing at time Etete new Chicago, inthe county of Qooi: e.-

franged to define e qneriieteml Winding space in which the winciing and itscgiooi are disposed." The cpooi for the "indi nges preferably molded in one piece from. beizciite or other suitable mokiing material. The spool preferably comprises e portion and two flanges, one at each end of the iomiy portion, said flanges heading each, two eheoei shoulders on by; ositc siciee of the cocci 'iiiae shouiciers. 0. each cit are symmetri cell; rotated endinwer iy facing to define spaces in which said polioi'exten'sions are received.

The invention will be more fully e31 lnincd in connection with the accompanying drawing in which Fig. 1 is an axial. sectional View of a telephone receiver con taining the preferred form of polarized 'megnet of my invention; Fig. 2 is a sectionai view on line 2-2 or Fig. i; Fig. 3'

it view in side elevation of the structure 40 "illustrated in Fi s. 1, 2 and 3 but with the receive: casing removed; and Fig. 4': is a perspective View illustrating the spool and one polar extension in assembly and the other polar extension separated,

Like ports are indicated by similar characters of reference throughout the difi'ei'ent figures.

The permanent magnet 1 is pi'efcmbiv ring like in form.

Its pole; extensions 2 I are of ii form, each end. of the permanent magnet be ng provided with one of-thcse extensions which are symmetrically er- --i"-m 'ed with one ends of each facing and O n) Spaced apart from the ends of the other to define n space tor the magnet winding it agnet. The

e anti the cmietuce i the icet Electra- A. i'ivet passes through bogiy of winding eoooi comprises a bociy portion 5 cnci two flanges 6 one at each end of the booiy portion, said flanges having, each, two evnmieti'icoiiy neieted pairs or L shaped s outdo-rs I on opposite sides of the spool. The shouiciere oft cacii air are symmetricelly reiotedoncl inwai'c 1y facing to definespcces in which said polar extensions are received. The spool is formed with an opening 8 extending theretiirough and between the L shaped shoulders of each pair, the

polar extensions are formed with angular recesses 9 at each of its corners in which adjacent sides of the shoulders are received. The coil 3 is wound u n saici spool between its flanges. T c armature 4' is mounted upon a stirrup 10 and is pieced. within the spooi o ening and between said polar extensions. "he spooi, which, witifits fian ee; is preferably made of mohied bakelite, is time fimniy oesemble with and so L 3 I 4 i I pom/co o3; the potato extensions witnout t 1c cid ot' miditionai means.

The iuociyportion 11 oi the traieiver casing isexterioriy tizieoded at site rim to receive the casing cap 12 that is screwed thereon lice :1 control sound conveying paseegc 13 here shown as being interioriy threaded for connection with a, sound omplifying horn. A ligifi cup 1% has its circular cot-setting rim 15 clamped between the threaded end; of the casing body and en cnnulcr ridge 15 formed upon the intefior of the cap 12. The tele hone receiver die phlegm other suitable resiiient sheet material, is interimsed and eiampeci between the ridge am the annular rim oi the cup, this rim constituting a seat for the diaphragm. As is set forth in cepenciing application, the

diaphragm is tensioned to resist deflection from its normal plane in either direction, a. central portion of the diaphragm and has flanges 19411161 20,

one upon each side ofthe diaphragm. The, flange 19 is secured in plene by stcking. Cushion Washers 21 end 22 are employed, one being clamped between each rivet flange zinii the adjacent face of the diaphragm. A link 23 is screwed, at one end,into soici FiVBiZ and is further Svflil'ii thereto by a drop of soldier 24lupon the outer ends of the link and rivet. This link is connected at its other end in one end of the armature composeci oi mice, bokeiite, or

integrally 1 :formed wwith the i the rivet and the fiange 20 is,

prising a body portion assembly of the diaphragm and :irn'iet e do ihed form the subject matter or" my copending application Serial No. 231295) filed hilly l, 1925.

It is obvious that changes may be made without departing from the spirit of my invention.

Having thus described my invention I claim as new and desire to secure by Letters Patent the iollowingz-- l. in a polarized electromagnet, the combination willi permanent magnet; oi two polar extensions of U form, each end of the permanent magnet being provided with one of these extensions which are symmetrically arranged with the ends of each facing and spaced apart from the ends of the other to define a space for the winding}; and armature of the magnet; a winding spool comprising a hody portion and two flanges, one at each end of the body portion. soid flanges having, eacln two symmetrically related pairs of L shaped shoulders on opposite sides of the spool, the shoulders of each pair being; symmetrically related and in weirdly facing in define spaces in which seid polar exliensions received, the spool heing formed with opening extending therct-hi'on and between the l. shaped shoulders L each. pom, the polar extensions bein formed with ain 'ulei recesses at eachof their corners ingwhich adjacent sides of the shoulders are received; a winding upon said spool and between its flanges; and on armature within the'spool opening and hetween said polar extensions.

2. In polarized electromegnet, the combination wit-ll a, permanent magnet; of two polar extensions'of U form, each end of the permanent magnet being provided with one of these extensions which are symmetrically arrnnged will the ends oil-each facing and spaced apart from the ends of the other to define a space for the winding and ammo.

ture of the magnet; a winding spool comand two flanges, one at each end of the body portion, said flanges having, each, two symmetrically related pairs of L'shaped shoulders on opposite sides of the spool, the shoulders of each pair being symmetrically relaied and inwardly facing to define spaces in which said polar extensions are received, the spool being formed with an opening extending therethrongh, the polar extensions being foimc-d'with angular recesses at each of their corners in which adjacent sides of the shoulders are received; a, winding upon said spool and between its flanges; and an armature within the spool opening and between said polar extensions.

3. 1n a polarized elecp'omagnct, the combinetion with 21 permanent magnet; of two polar extensions of U form, eachend of the permanent magnet being provided with i-icolly arranged Withthe ends of emons one of these extensions which are symmetrically nzii'anged with theonds of each fecing and spaced apart from. the ends of the other to define a. space for the winding and armature of the magnet; a winding spool made of molded material comprising abody portion and two flanges, one. at each end of the body portion, said flanges having, each, two symmetrically related pairs of L shaped shoulders on opposite sides of the spool, the shoulders 01' each pair being symmetrically related and inwardly facing to define spaces in which said polar extensions are received, the spool being; formed with an opening extending therethrough and between the L shaped shoulders of each pair, the polar extensions being formed with angular recesses at each oi" their corners in which adjacent sides of the shoulders are received, a winding upon said spool and between. its flanges; and an nrziiiitiu'o within the spool opening and between said polar extensions.

4- lna polarized electronmgnet, the combination with a pernmnentmagnet; of two pols extensions of U form, each end of the permanent magnet being provided with one oi these extensions which are symmetrically arranged with the ends oi' each facing and spaced apart from, the ends of the other to define a space for the winding and armature of the n'iagnet; a winding spool made of molded material comprising a body portion and two flanges; one at each end pf the body portion, said flanges having, each, two symmetrically related pairs o i L shaped shoulders on opposite sides of the spool, the shouldci s of each pair being syni' metrically related and inwardly facing to define spaces in which said polar extensions are received, the spool being formed with an opening extending therethrough, the polar extentions being formed with angular recesses at each of their corners in which adjacent sides of the shoulders are received; a Winding upon said spool and between. its flanges; and an armature within the spool opening and between said polar extensions.

5. In a polarized clectromagnet, the combination with a permanent magnet; of two polar extensions of U form, each end of the permanent magnet being provided with one of these extensions which are symmeteach facing and spaced apart from the ends of the other to define a space for the winding and armature of the magnet; a Winding spool comprising a body portion and two, flanges, one at each end of the body por tion, said flanges having, each, two symmetrically related pairs of L shaped shoulders on opposide sides of the spool, the shoulders of each pair being symmetrically related and inwardly facing to define spaces in which said polar extensions are received, the spool beiiig fox-mail Wiiili as opening extending tlieielslirougli and belnveeii 'i'lie l. shaped SilOLllCiEiS of each pair; winding upon said spool and bEi-Wfifil'l its flanges; and an armeture within file spool opening and between said poise extensions.

6. In a polarized electromagoet the combination with a. permanent magnetyof two poles extensions of U for: 1, each end of the permanent mags-ct being provided with one of these extensions which are symmetrically armngeflwill]. the emls of each facing and spsc'ecl apart from the ends of the other ":0 defined space for the wincling and. armall\1i of the mugneo; 2, wincling spool com- ,prising a body portion and two flanges, one

ill? each end of H18 hotly porlz-ion, said flanges having, each, im'o symmetrically related pairs of l shaped should rs on ogposite sicles of the spool, the shoulders of each psir' being symmetrically related and inwardly'lecing to define spaces in which we poles extensions are received, the spool rising iormeii with an opening extending tliere'sliro'ugli; e Winding upon said and between its flanges; 21ml an arnmtuie within the spool opening encl between said polar extensions.

'7. In a polarized clectromzignet, the comloinaiiori with e pexcmenenl; magnet; of two polar extensions of U form, each end of the permanent magnetlaeing provided with one of these extensions which are symn'icti'icslly ELIlElYlg8(i with the ends of each facing and spaced some from the ends of the other to decline a space for winding and nrnieiluie of lhe magnets winding spool made of molded z'izsterizil comprising a bocly portion and two flanges, one at e'icli end of the body portion, said flanges llilllflg} each two symmetrically relaiisrl pairs of 5.. shag-cal shoulders on opposi'l'e sides of the spool,

permanent magnet beinp' provided with one of these extensions which are synin'ietrically zu'rangeol with the ends of each facing and spaced apart from the ends of the oilioi to define a space for the winding and arms lure of the magnet; a winding spool made of molded material comprising a body por- (ion and two flanges; one at each encl of the body portion,- said flanges having, each two symmetrically related pairs of la shaped shoulders on opposite sicles of the spool, the slioulziers of each pair lieing syimneti'i sally related and inwardly facing to define spaces in which said polar extensions are received, the spool being formed with an opening extending theretlirough; a inding upon said spool and between its lioness;

and an armature within-the spool opening and between said polar extensions.

lln witness whereof, I hereunto subscribe meme.

HENRY G. SALL.